Smith threw 15-to-18 pitches off a mound for the first time since undergoing Tommy John surgery last May, Brian MacPherson of the Providence Journal reports.
Although he's still a ways from returning to live action, it's good to see the 27-year-old taking the next step in his recovery. Smith will continue to move slowly through the process; he'll likely find himself staying back in Florida to face live batters in extended spring training before entering a minor league rehab assignment.